A textbook of obstetrics . gmentation of the mammalianovum (Allen Thompson, after von Reneden) ; 4, diagram illustrating the relation of theprimary layers of the blastoderm (Bonnet). INSEMINA TION. 69 In Jewesses, who are proverbially prolific, copulation is notallowed until a week after the cessation of menstruation. It isalmost inconceivable that the ovum has not reached the uterinecavity by this time. The question, however, is not yet decided,and the student is at liberty to adopt the view most acceptableto his reason. The Fertilization of the Ovum.—From what has been seenin the lower anima
A textbook of obstetrics . gmentation of the mammalianovum (Allen Thompson, after von Reneden) ; 4, diagram illustrating the relation of theprimary layers of the blastoderm (Bonnet). INSEMINA TION. 69 In Jewesses, who are proverbially prolific, copulation is notallowed until a week after the cessation of menstruation. It isalmost inconceivable that the ovum has not reached the uterinecavity by this time. The question, however, is not yet decided,and the student is at liberty to adopt the view most acceptableto his reason. The Fertilization of the Ovum.—From what has been seenin the lower animals and in the vegetable kingdom, it is probablethat the ovum, during its passage through the tube or on its arrivalin the uterine cavity, excretes some material which attracts thespermatic particles, as the female elements of some plants attractthe male elements by an excretion of malic acid. From theswarm of spermatozoa around it a number may penetrate thecell-wall of the ovum, but only one penetrates the
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectobstetrics, bookyear1
